It's unfortunate but most of the B2B marketing is done at business conferences I imagine. It's not cheap to setup a booth and I imagine the success rate is not very high.
On the flip side, B2B conferences and tradeshows exist because they're able to give vendors face time with people they couldn't easily meet otherwise.
It's not cheap, the success rate isn't high, but it can be cost-effective. I've spent 20k USD on a small 6x3 feet booth space, but also gotten 40 to 50k USD over the course of a few months from conversations that were initiated at the booth.
Another point to factor in is that enterprise customers by nature have low churn... and that makes the RoI work out in the end.
